The U.S. customs and FDA work closely and recently while doing a spot examination of a mail shipment of foreign drugs, the US Customs revealed that such shipments usually contain counterfeit and unapproved drugs that create severe safety problems. This joint operation by customs and FDA was carried out to help customs and FDA stop counterfeit and potentially unsafe drugs from entering the United States. Ideally this is the task of compliance programs.

CFSAN and the effects FDA compliance failure